Boiler.



o. T. NELSON.

Patented Nov. 21, 1916.

ATTORNEY provide an improved and novel sectional- OIL-LIE T. NELSON, 0F SEATTLE, WASHINGTON.

roman.

To all whom it may concern:

Be it .known that I, OLLIE T. NELsoN, a citizen of the United States, and a resident of Seattle, in the county ofKing and State.

of Washington, have invented certain new and useful Improvements in Boilers, of which the following is a full, true, and exact specification.

My invention relates to improvements in boilers and has for its principal object, to

water leg boiler setting for use with my improved tubular boiler as set forth in my application No. 843,985, filed July 8th, 1914.

A further object is to provide a setting to which the boiler, need not be secured. Other objects are to provide an improved connec: tion oint between the boiler and setting; to provide a-water cooled bridge in the said setting. Applicant has devised a boiler, setting which is built in sections in a shop. and which-is easily transported, carried through limited spaces and quickly set up. -Upon this setting the boiler referred to is rested without fastening, an improved circulation con-* nection being maintained by theweightof up. The ease and cheapness of assembly and the particular adaptability of the setting toil applicants boiler are important factors in. the ease.

Other objects will ing drawings and pointed out in theappended claims.

Figure 1' is'a side elevation of the boiler and setting assembled with parts broken I my boiler as set forth in my previous;appli-' I The plates of saidfire box are stay bolted as at 5 and has all welded seams-thereby" being adapted to hold water. Abridge 6.;

so maybe built of double construction and integralwith the sides of the section so as to .be water cooled. -The fire box section 4 rests freely upon the-ash .pit section. The fire box section is rectangular in shape and has a semicircular cut out portion as at 7m the Specification. or Letters Pas-a.

appear as invention L j ismore fully explained inithe following; specification, illustrated in the accompany- In a water cation above referred to and having a dia-- metrically offset portion 2. The setting in-"-' cludes an ash pit section 3 and a double con---= struction pressure resisting fire box section I Patented Nov. 21,

Application filed August 10, 1915. Serial m. 44,763.

front which fits snugly the periphery of the boiled 1, the horizontal diameter of the boiler just closin setting and the 0 set portion 2 resting upon the straight rear portion 8 of the setting.

the top opening of the A water connection between the setting and. the boiler is made where the ofiset portion 2 rests upon the'rear portion 8 of the setting. 1

The said connectionincludes a concave ring 9 welded to the inside of the top plate 8 and around an opening 10 in said plate. A short nipple 11 is secured intothe ring 9 and al' lowed to project above the plate 8. Before 3 the boiler is placed upon the setting, a copper tubular packing ring 12 is placed around the nipple 11 adjacent the-coneaved porboiler through which the nipple 11 projects. The weight of the boiler compresses the packing l2 and thus-makes atight joint.

@tion of the ring 9. A hole 13 is'left in the 4 Tofacilitate the compression of the .packf ing bolts 14 are welded into the'top of the setting and project'through' lugs15 on. the boiler. By settingi -up the nuts 16 on .the

.bolts 14, the boiler and setting are drawn .together tightly... The compactness of my. the boiler. The boiler is now completelyset satisfactory in actual practice.

setting andease iof assemblytogether with j 4 its heat conserving properties should be'fapparent to' all and have proved eliicient and .While I-have shown a particular form of embodiment'of my inventiom'l am aware":

thatmany minor changes therein will readily suggest themselves to. others skilled in the .art ,without departing from the spirit out in the appended claims.

iandscope of the invention, and I therefore 'desire to-,-avoidbeing limited to-the exact form shown and described except" as pointed Having described my invention, I I

.c'laim'as new and desire tov protect. by Let- JtersjPatent,,isp q I leg boiler setting "which is 1 cut away. in ;a semi-circular shape in front and on a horiz ontal line in the rear and a freely'supported-boil'er withasemi-circular Y Y oifsetin its rear end restingon said setting,

the combinationof a water connection be- I tween the said ofit'set portion of the boiler and the said horizontal portion of the set-'- -ting, said connection including a concave collar ring secured to the inside of said hori- 'zontal portion and positioned opposite an openin therein, a nipple assing through and secured-tothe ring an a tubular cop per packing ring encircling the said nipple I and resting in the concave portion of the collar, whereby when an opening in the offset portion of the boiler is positioned around the said nipple the Weight of the boiler compresses the copper ring and forms a water tight joint.

2. In a connection between a boiler and a Water leg boiler setting, the combination of a concave collar ring secured to the inner side of the said setting and concentric with an opening in said setting, a tubular nipple secured in the opening in the said collar and projecting through an opening in said boiler, and an endless tubular copper packing ring encircling the'said nipple and resting in the concave portion of said collar, whereby the weight of the boiler compresses the said copper packing ring between the collar and the boiler and forms a water tight joint between said boiler and setting.

OLLIE T. NELSON. 

